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//===-- msan_chained_origin_depot.h -----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of MemorySanitizer.
//
// A storage for chained origins.
//===----------------------------------------------------------------------===//
#ifndef MSAN_CHAINED_ORIGIN_DEPOT_H
#define MSAN_CHAINED_ORIGIN_DEPOT_H
#include "sanitizer_common/sanitizer_common.h"
namespace __msan {
// Gets the statistic of the origin chain storage.
StackDepotStats ChainedOriginDepotGetStats();
// Stores a chain with StackDepot ID here_id and previous chain ID prev_id.
// If successful, returns true and the new chain id new_id.
// If the same element already exists, returns false and sets new_id to the
// existing ID.
bool ChainedOriginDepotPut(u32 here_id, u32 prev_id, u32 *new_id);
// Retrieves the stored StackDepot ID for the given origin ID.
u32 ChainedOriginDepotGet(u32 id, u32 *other);
void ChainedOriginDepotLockAll();
void ChainedOriginDepotUnlockAll();
} // namespace __msan
#endif // MSAN_CHAINED_ORIGIN_DEPOT_H
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